[support] Re: IPv4-IPv6 handovers issues

[NGUYEN Duc Kien]

Hi Rickie,
 
The scenario you describe is normal for DSMIPv6 (all versions), It seems that the errors don’t come from the code.
 
Did you already apply the xfrm patches to the kernel? Log + configuration files can help us to debug... 

Regards,
Kien.

________________________________
From: Rickie C <rickie.ind at gmail.com>
To: kien.duc-nguyen at univ-paris8.fr
Cc: support at ml.nautilus6.org; dsmip at ml.nautilus6.org
Sent: Friday, March 6, 2009 1:23:03 PM
Subject: IPv4-IPv6 handovers issues

Hi Kien,
I have some issues in IPv4-IPv6 mixed handovers. I have tested handovers with mipv6-daemon-umip-0.4 baseline code after applying series of below mentioned patches.

Patch Information:

1. umip-dsmip-20080530 (userland-dsmip-20080530)
    * 0001-upstream_fix_memset_in_bcache_alloc.patch
    * 0002-cleanup_trailing_spaces.patches
    * 0003-k_flag.patch
    * 0004-nepl.patch
    * 0005-conf_display.patch
    * 0006-dsmipv6.patch
    * 0007-remove_assert_0.patch
    * 0008-HomeAgentName.patch
    * 0009-dhcp_support.patch
    * 0010-remove_v4_mapped_addresses.patch
    * 0011-NAT-traversal.patch
    * 0012-NAT-UDP-encap.patch
    * 0013-using_nat_option.patch
 2. umip-dsmip-0.1-patches
    * 01-DSMIPv6-delete_addr_from_iface.patch
    * 02-DSMIPv6-MR_xfrm_removal.patch
    * 03-DSMIPv6-sit_makes_crash_OS.patch
    * 04-DSMIPv6-HA_xfrm_removal.patch
    * 05-DSMIPv6-handover64.patch
 3. umip-dsmip-v4traffic
    * umip-dsmip-v4traffic-20081021.patch

Non-working Scenario:

a. HL   ----ho----> IPv4 FL
    When MN is booted in HL and we move MN to IPv4 FL, the DHCP server on IPv4 FL assigned the IPv4 address to egress interface of MN but movement detection fails. 
    And no BU is send to HA.
    
b. IPv4 ----ho----> IPv6 FL
    Booted MN in IPv4 FL and moved MN to IPv6 FL. The movement detection fails and no BU is send to HA. The previous CoA address of IPv4 FL is not getting released.
    And new IPv6 CoA is also getting assigned to egress interface of MN. 

Do we need some more patches to fix the above mentioned issues? Please provide some more help in this regard.

Regards
Rickie

PS: There is no issues when we move MN to IPv6 FL. The problems we are facing, when IPv4 FL comes into picture.